A multi-directional adjustable sampler

Abstract

The present invention discloses a multi-directionally adjustable sampler, which relates to the technical field of samplers and comprises: a carrying frame, which serves as the main supporting structure of the sampling system; a driving device, wherein the output end of the driving device is fixedly mounted on the top of the carrying frame, a signal receiving module is arranged inside the driving device, and a through hole is opened on the driving device, and the through hole is used for passing a lifting rope; a sampling barrel, which is fixedly mounted on the bottom of the carrying frame, a sampling tube is arranged on the circumferential surface of the sampling barrel, and the sampling tube is used for sampling wastewater; a partition plate, which is fixedly mounted on the inside of the sampling barrel, and the partition plate divides the inside of the sampling barrel into an upper cavity and a lower cavity; after the lifting rod touches the bottom, the sewage in the lower layer of the sewage pool is automatically sampled, ensuring that the upper and lower sewage layers are collected independently, which helps to reduce repeated operations and improve sampling efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of samplers, in particular to a multi-directionally adjustable sampler. Background Art

[0002] The wastewater sampler is a special device used to collect liquid samples. It has the characteristics of multi-directional adjustment and precise sampling. It is suitable for laboratories, sewage treatment plants, chemical production and other scenarios.

[0003] The patent with patent announcement number CN220084388U relates to a wastewater sampler, including a sampler barrel, a sampler base, a sampler cover and an inner sticking block, the sampler base is arranged at one end of the above-mentioned sampler barrel, and the sampler cover is fixed to the other end of the sampler barrel; through the combined operation of the sampler barrel, the sampler base, the sampler cover and the inner sticking block, when the patented component structure is extended into the wastewater, after reaching a certain depth, the specified depth of the sampler barrel is maintained, and then the restricting force on the inner sticking block is released, the gap between the inner sticking block and the sampler cover part on the sampler barrel can be leaked, thereby facilitating the wastewater to enter the sampler barrel, and then fully sampling the wastewater at the specified depth can be carried out, and then only the part connected to the single-strand pull rope is pulled to close the above-mentioned gap, thereby quickly lifting the entire sampler, with a simple structure, easy operation for personnel and strong practicality.

[0004] The above patent has the characteristics of being easy for personnel to operate and highly practical. By leaking the gap between the inner sticker and the sampler cover on the sampler barrel, it is convenient for wastewater to enter the sampler barrel, thereby fully sampling the wastewater at a specified depth. However, in actual operation, in order to improve the diversity of sampling, the operator usually needs to sample the upper sewage and the lower sewage separately. This operation method leads to an extension of the sampling process time, and during the sampling process, the sewage is easily mixed, thereby reducing the accuracy and precision of the sampling. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a multi-directionally adjustable sampler, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-directionally adjustable sampler, comprising: a carrying frame, the carrying frame serving as the main supporting structure of the sampling system; a driving device, the output end of the driving device is fixedly mounted on the top of the carrying frame, a signal receiving module is provided inside the driving device, a through hole is provided on the driving device, and the through hole is used to pass a lifting rope; a sampling barrel, the sampling barrel is fixedly mounted on the bottom of the carrying frame, a sampling tube is provided on the circumferential surface of the sampling barrel, the sampling tube is used to sample wastewater, and the driving device moves It drives the carrying frame to move downward, and the movement of the carrying frame drives the sampling cylinder to move downward; a partition plate, the partition plate is fixedly installed inside the sampling cylinder, and the partition plate divides the inside of the sampling cylinder into an upper cavity and a lower cavity; a cylinder, the cylinder is slidably installed inside the sampling cylinder, and the cylinder slides along the vertical axis direction, and an annular groove is provided on the circumferential surface of the cylinder; a No. 1 spring, the No. 1 spring is arranged between the cylinder and the partition plate, and the compressed No. 2 spring rebounds to push the sealing plate to reset; an L-shaped rod, the L-shaped rod is fixedly installed on the top of the cylinder, and the L-shaped rod is used for manual operation and lifting.

[0007] According to the above technical solution, a lifting rod is slidably passed through the bottom of the sampling cylinder, a No. 2 spring is arranged between the lifting rod and the partition plate, a sealing plate is fixedly passed through the circumferential surface of the lifting rod, the movement of the sampling cylinder drives the lifting rod downward, and the movement of the lifting rod drives the sealing plate downward, and a plurality of circular holes are opened on the side of the sampling cylinder close to the partition plate.

[0008] According to the above technical solution, the shape of the lifting rod is set to be "I" shape, the sampling tube is in contact with the annular groove, and the movement of the cylinder drives the L-shaped rod to move downward synchronously until the annular groove is out of contact with the sampling tube and the sealing plate is in contact with the circular hole.

[0009] According to the above technical solution, a locking device that plays a limiting role and an auxiliary device that plays a maintenance role are provided on the circumferential surface of the sampling cylinder; the locking device includes a connecting frame, a rotating rod, a rectangular plate, a rotating shaft, a blocking plate and a triangular block, the L-shaped rod contacts the side of the blocking plate close to the triangular block, and the L-shaped rod moves to apply continuous downward pressure on the blocking plate, the connecting frame is fixedly installed on the circumferential surface of the sampling cylinder, the rotating rod rotates and passes through the surface of the connecting frame, the rectangular plate is fixedly installed on the circumferential surface of the rotating rod, the rotating shaft rotates and passes through the surface of the rectangular plate, the blocking plate is fixedly installed on the circumferential surface of the rotating shaft, and the triangular block is fixedly installed on the side of the rectangular plate close to the blocking plate, a No. 1 torsion spring is provided between the rotating rod and the connecting frame, and the No. 1 torsion spring is stretched when the rotating rod rotates, and the No. 1 torsion spring is deformed by the stretching, a No. 2 torsion spring is provided between the rotating shaft and the rectangular plate, and the triangular block contacts the top of the blocking plate.

[0010] According to the above technical solution, a handle is fixedly installed on the circumferential surface of the rotating rod, and a round rod is fixedly installed on the side of the handle close to the connecting frame. When the handle is rotated clockwise, the rotation of the handle drives the rotating rod and the round rod to rotate synchronously.

[0011] According to the above technical solution, the auxiliary device includes a hollow frame, a connecting rod, a No. 3 spring, a semicircular piece and an annular plate. The deformed No. 3 spring begins to recover, and the recovery of the No. 3 spring drives the connecting rod to move upward. The hollow frame is fixedly installed on the circumferential surface of the sampling tube, and the connecting rod slides through the top of the hollow frame. The No. 3 spring is arranged between the connecting rod and the hollow frame. The semicircular piece is fixedly installed on the top of the connecting rod, and the annular plate is fixedly installed on the circumferential surface of the connecting rod. The curved surface of the semicircular piece contacts the circular rod, and the circular rod gradually reduces the pressure applied to the semicircular piece and disengages from the semicircular piece during rotation.

[0012] According to the above technical solution, an arc-shaped piece is fixedly installed on the circumferential surface of the connecting rod, and several cylindrical rods are fixedly installed on the inner wall of the hollow frame. The movement of the connecting rod drives the arc-shaped piece to move upward, and the arc-shaped piece moves and contacts with the cylindrical rod.

[0013] According to the above technical solution, the annular plate contacts the circumferential surface of the sampling tube, the arc-shaped piece itself is elastic, the cylindrical rod applies resistance to the arc-shaped piece, and the arc-shaped piece is elastically bent under the influence of the resistance, and several cylindrical rods are equidistantly distributed along the vertical axis direction.

[0014] The present invention provides a multi-directional adjustable sampler with the following beneficial effects:

[0015] (1) The multi-directionally adjustable sampler allows the upper sewage to flow into the cylinder through the sampling tube and the annular groove. The sealing action of the cylinder ensures that only the upper sewage is collected, preventing the mixing of sewage at different depths, which helps to improve the accuracy of stratified sampling and ensure data reliability. At the same time, the sewage at the bottom of the pool flows into the lower cavity of the sampling cylinder through the circular hole. After the lifting rod touches the bottom, the sewage in the lower layer of the sewage pool is automatically sampled, ensuring that the upper and lower sewage are collected independently, which helps to reduce repeated operations and improve sampling efficiency.

[0016] (2) The support provided by the triangular block of the multi-directionally adjustable sampler forms a barrier to prevent the L-shaped rod from moving upward. The blocking plate can automatically block the L-shaped rod to prevent the L-shaped rod from moving uncontrollably due to an unexpected situation during the recovery of the sampling tube, thereby ensuring the safety of upper sewage sampling. At the same time, the blocking plate rotates out of the motion trajectory of the L-shaped rod. Through a simple operation process, the operator can quickly remove the blockage imposed by the blocking plate on the L-shaped rod, thereby ensuring the stability of the sampling process and improving the smoothness of the operation.

[0017] (3) The multi-directionally adjustable sampler has an annular plate that moves to scrape off the sediment near the circular hole to prevent foreign matter such as fibers and mud in the sewage from clogging the circular hole. When the operator pours out the upper layer of sampled sewage, the annular plate automatically cleans the dirt near the circular hole to prevent the circular hole from being blocked and affecting the efficiency of sewage discharge. At the same time, the connecting rod moves to drive the annular plate to the initial position, and the annular plate is synchronously reset to the initial position to ensure that after each sampling, the operator does not need to perform tedious preparation operations, thereby ensuring the smooth actual sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the sampling tube of the present invention;

[0020] Figure 3 Schematic diagram of the internal structure of the cylinder of the present invention;

[0021] Figure 4 This is a schematic diagram of the position structure of the locking device and the auxiliary device of the present invention;

[0022] Figure 5 This is a schematic diagram of the position structure of the blocking plate and the triangular block of the present invention;

[0023] Figure 6 This is a schematic diagram of the overall structure of the auxiliary device of the present invention;

[0024] Figure 7 Schematic diagram of the internal structure of the auxiliary device of the present invention.

[0025] In the figure: 1. Carrying frame; 2. Driving device; 3. Sampling cylinder; 4. Partition plate; 5. Cylinder body; 6. Spring No. 1; 7. L-shaped rod; 8. Lifting rod; 9. Spring No. 2; 10. Sealing plate; 111. Connecting frame; 112. Rotating rod; 113. Rectangular plate; 114. Rotating shaft; 115. Blocking plate; 116. Triangular block; 117. Handle; 118. Circular rod; 121. Hollow frame; 122. Connecting rod; 123. Spring No. 3; 124. Semicircular piece; 125. Annular plate; 126. Arc-shaped piece; 127. Cylindrical rod. DETAILED DESCRIPTION

[0026] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] See also Figure 1 - Figure 3 One embodiment of the present invention is: a multi-directional adjustable sampler, comprising: a mounting frame 1, the mounting frame 1 serving as the main supporting structure of the sampling system; a driving device 2, the output end of the driving device 2 being fixedly mounted on the top of the mounting frame 1, a signal receiving module being provided inside the driving device 2, a through hole being provided on the driving device 2, the through hole being used for passing a lifting rope; a sampling barrel 3, the sampling barrel 3 being fixedly mounted on the bottom of the mounting frame 1, a sampling tube being provided on the circumferential surface of the sampling barrel 3, the sampling tube being used for sampling wastewater; a partition plate 4, the partition plate 4 being fixedly mounted on the sampling barrel 3, the partition plate 4 divides the interior of the sampling cylinder 3 into an upper cavity and a lower cavity; the cylinder 5, the cylinder 5 is slidably installed in the interior of the sampling cylinder 3, the cylinder 5 slides along the vertical axis, and an annular groove is provided on the circumferential surface of the cylinder 5; the No. 1 spring 6, the No. 1 spring 6 is arranged between the cylinder 5 and the partition plate 4; the L-shaped rod 7, the L-shaped rod 7 is fixedly installed on the top of the cylinder 5, and the L-shaped rod 7 is used for manual operation and lifting. The closing action of the cylinder 5 ensures that only the upper sewage is collected to prevent the mixing of sewage at different depths, which helps to improve the accuracy of stratified sampling and ensure data reliability.

[0028] A lifting rod 8 is slidably passed through the bottom of the sampling tube 3, and a No. 2 spring 9 is arranged between the lifting rod 8 and the partition plate 4. A sealing plate 10 is fixedly passed through the circumferential surface of the lifting rod 8. A plurality of circular holes are opened on the side of the sampling tube 3 close to the partition plate 4. After the lifting rod 8 touches the bottom, the sewage in the lower layer of the sewage pool is automatically sampled to ensure that the upper and lower layers of sewage are collected independently, which helps to reduce repeated operations and improve sampling efficiency.

[0029] The shape of the lifting rod 8 is set to be "I" shape, the sampling tube contacts the annular groove, the sealing plate 10 contacts the circular hole, and the circular hole is closed by the sealing plate 10 to ensure that the sampling of the lower sewage can be carried out only after the lifting rod 8 touches the bottom.

[0030] When this embodiment is working, the operator passes the rope through the through hole and fixes it to the driving device 2, and then controls the rope to be lowered vertically from the top of the sewage pool. The movement of the rope drives the driving device 2 to move downward, and the movement of the driving device 2 drives the carrying frame 1 to move downward, and the movement of the carrying frame 1 drives the sampling cylinder 3 to move downward until the sampling cylinder 3 contacts the sewage liquid surface. When the sampling cylinder 3 is immersed in the sewage, the operator remotely starts the driving device 2, and drives the carrying frame 1 to rotate through its output end, driving the sampling cylinder 3 to adjust to a preset angle. After the adjustment is completed, the driving device 2 is turned off. At this time, the sewage flows into the cylinder 5 through the sampling tube and the annular groove. As sewage is injected, the pressure exerted by the cylinder 5 on the No. 1 spring 6 gradually increases, and the squeezed No. 1 spring 6 is compressed to drive the cylinder 5 downward, and the movement of the cylinder 5 drives the L-shaped rod 7 to move downward synchronously until the annular groove is out of contact with the sampling tube, automatically cutting off the inflow of sewage. At this time, the increased weight of the cylinder 5 lowers the center of gravity of the sampling cylinder 3, suppressing the swing of the sampling cylinder 3 caused by water flow disturbance, making the sampling cylinder 3 more stable during the subsequent lowering process. The closing action of the cylinder 5 ensures that only the upper sewage is collected, preventing the mixing of sewage at different depths, which helps to improve the accuracy of stratified sampling and ensure data reliability. The operator continues to lower the rope, driving the sampling tube 3 to move toward the bottom of the sewage pool. The movement of the sampling tube 3 drives the lifting rod 8 downward, and the movement of the lifting rod 8 drives the sealing plate 10 downward until the lifting rod 8 contacts the bottom of the pool. At this time, the supporting force of the pool bottom stops the lifting rod 8 from moving downward, and the sampling tube 3 continues to sink under the action of gravity. When the sampling tube 3 continues to move downward, it drives the partition plate 4 to move downward to squeeze the No. 2 spring 9. At the same time, the multiple circular holes on the side wall of the sampling tube 3 gradually break away from the sealing plate 10, allowing the sewage at the bottom of the sewage pool to flow into the lower cavity of the sampling tube 3 through the circular holes. When the bottom sewage is collected, the operator The operator retracts the rope, which drives the sampling tube 3 to rise, and the compressed No. 2 spring 9 rebounds to push the sealing plate 10 to reset. After the sealing plate 10 resets to the initial position, it reseals the circular hole to prevent the collected sewage from leaking or mixing. After retrieving the sampling tube 3, the operator can pull the L-shaped rod 7 to tilt the sampling tube 3 to pour out the upper layer of sampled sewage, press the lifting rod 8 to make the sealing plate 10 separate from the circular hole again, and pour out the lower layer of sampled sewage. After the lifting rod 8 touches the bottom, the sewage in the lower layer of the sewage pool is automatically sampled, ensuring that the upper and lower layers of sewage are collected independently, which helps to reduce repeated operations and improve sampling efficiency.

[0031] See also Figure 1 - Figure 7On the basis of the above embodiment, in another embodiment of the present invention, a locking device that plays a limiting role and an auxiliary device that plays a maintenance role are provided on the circumferential surface of the sampling cylinder 3; the locking device includes a connecting frame 111, a rotating rod 112, a rectangular plate 113, a rotating shaft 114, a blocking plate 115 and a triangular block 116. The connecting frame 111 is fixedly mounted on the circumferential surface of the sampling cylinder 3, the rotating rod 112 rotates and penetrates the surface of the connecting frame 111, the rectangular plate 113 is fixedly mounted on the circumferential surface of the rotating rod 112, and the rotating shaft 114 rotates and penetrates the rectangular plate The surface of 113, the blocking plate 115 is fixedly mounted on the circumferential surface of the rotating shaft 114, the triangular block 116 is fixedly mounted on the side of the rectangular plate 113 close to the blocking plate 115, a No. 1 torsion spring is arranged between the rotating rod 112 and the connecting frame 111, and a No. 2 torsion spring is arranged between the rotating shaft 114 and the rectangular plate 113, the triangular block 116 is in contact with the top of the blocking plate 115, and the blocking plate 115 can automatically block the L-shaped rod 7 to prevent the L-shaped rod 7 from moving uncontrollably due to an emergency during the recovery of the sampling tube 3, thereby ensuring the safety of the upper sewage sampling.

[0032] A handle 117 is fixedly installed on the circumferential surface of the rotating rod 112, and a circular rod 118 is fixedly installed on the side of the handle 117 close to the connecting frame 111. Through a simple operation process, the operator can quickly remove the obstruction imposed by the blocking plate 115 on the L-shaped rod 7, ensuring the stability of the sampling process and improving the smoothness of the operation.

[0033] The auxiliary device includes a hollow frame 121, a connecting rod 122, a No. 3 spring 123, a semicircular piece 124 and an annular plate 125. The hollow frame 121 is fixedly mounted on the circumferential surface of the sampling tube 3, the connecting rod 122 slides through the top of the hollow frame 121, the No. 3 spring 123 is arranged between the connecting rod 122 and the hollow frame 121, the semicircular piece 124 is fixedly mounted on the top of the connecting rod 122, and the annular plate 125 is fixedly mounted on the circumferential surface of the connecting rod 122. The curved surface of the semicircular piece 124 contacts the circular rod 118. When the operator pours out the upper layer of sampled sewage, the annular plate 125 automatically cleans the dirt near the circular hole to prevent the circular hole from being blocked and affecting the efficiency of sewage discharge.

[0034] An arc-shaped piece 126 is fixedly mounted on the circumferential surface of the connecting rod 122 , and a plurality of cylindrical rods 127 are fixedly mounted on the inner wall of the hollow frame 121 . By providing a plurality of cylindrical rods 127 , it is ensured that the vibrations generated by multiple collisions can act smoothly on the connecting rod 122 .

[0035] The annular plate 125 contacts the circumferential surface of the sampling tube 3, the arc-shaped piece 126 itself is elastic, and several cylindrical rods 127 are evenly distributed along the vertical axis direction. They are synchronously reset to the initial position through the annular plate 125, ensuring that after each sampling, the operator does not need to perform tedious preparation operations, thereby ensuring the smooth actual sampling.

[0036] The support exerted by the triangular block 116 on the blocking plate 115 forms a block, preventing the L-shaped rod 7 from continuing to move upward, and the blocking plate 115 can automatically block the L-shaped rod 7, preventing the L-shaped rod 7 from moving uncontrollably due to an unexpected situation during the recovery of the sampling tube 3, thereby ensuring the safety of the upper sewage sampling and the operation. When the operator needs to pour out the sewage, he manually rotates the handle 117 clockwise. The rotation of the handle 117 drives the rotating rod 112 and the circular rod 118 to rotate synchronously. When the rotating rod 112 rotates, the No. 1 torsion spring is stretched. At the same time, the rotating rod 112 drives the rectangular plate 113 to rotate in the direction away from the L-shaped rod 7. The rotation of the rectangular plate 113 drives the rotating shaft 114 to rotate in the direction away from the L-shaped rod 7. The rotating shaft 114 drives the blocking plate 115 to rotate synchronously until the blocking plate 115 completely breaks away from the movement trajectory of the L-shaped rod 7 and the limit state is released. At this time, the operator lifts the L-shaped rod 7 vertically again, and the L-shaped rod 7 drives the cylinder 5 to move upward smoothly. When the cylinder 5 returns to its initial position, the annular groove and the sampling tube are re-connected. The operator tilts the sampling cylinder 3 to pour out the upper sewage. Through a simple operation process, the operator can quickly release the obstruction imposed by the blocking plate 115 on the L-shaped rod 7, ensuring the stability of the sampling process and improving the smoothness of the operation.

[0037] When the operator rotates the handle 117, the circular rod 118 rotates in the direction away from the semicircular piece 124, and the circular rod 118 gradually reduces the pressure applied to the semicircular piece 124 and loses contact with the semicircular piece 124 during the rotation. At this time, the deformed No. 3 spring 123 begins to recover, and the recovery of the No. 3 spring 123 drives the connecting rod 122 to move upward. The movement of the connecting rod 122 drives the semicircular piece 124 and the annular plate 125 to move upward synchronously, and the annular plate 125 moves to scrape the area near the circular hole. Sediment, to prevent foreign matter such as fiber and mud in sewage from clogging the round hole. At the same time, the connecting rod 122 moves to drive the arc piece 126 to move up, and the arc piece 126 moves to contact the cylindrical rod 127. The cylindrical rod 127 applies resistance to the arc piece 126. The arc piece 126 is affected by the resistance and elastically bends. The arc piece 126 stores energy in the bending. When the arc piece 126 is out of contact with the cylindrical rod 127, the bent arc piece 126 quickly rebounds and collides with the subsequent cylindrical rod 127. The collision of rod 127 generates vibration, which is transmitted to connecting rod 122, reducing the movement resistance and ensuring the smooth movement of connecting rod 122. When the operator pours out the upper layer of sampled sewage, the annular plate 125 automatically cleans the dirt near the circular hole to prevent the circular hole from being blocked and affecting the efficiency of sewage discharge. When the circular rod 118 returns to its initial position, the circular rod 118 rotates and contacts the curved surface of the semicircular piece 124. As the circular rod 118 continues to rotate, the downward pressure exerted on the semicircular piece 124 gradually increases, and the semicircular piece 124 is squeezed and moves downward. The movement of the semicircular piece 124 drives the connecting rod 122 to move downward, and the connecting rod 122 moves to stretch the No. 3 spring 123. At the same time, the movement of the connecting rod 122 drives the annular plate 125 to move to the initial position to prepare for the next work. The annular plate 125 is synchronously reset to the initial position to ensure that after each sampling, the operator does not need to perform tedious preparation operations, thereby ensuring the smooth actual sampling.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-directional adjustable sampler, characterized in that: For wastewater sampling, including: A carrying frame (1), the carrying frame (1) serving as the main supporting structure of the sampling system; A driving device (2), wherein an output end of the driving device (2) is fixedly mounted on the top of the mounting frame (1), a signal receiving module is provided inside the driving device (2), and a through hole is provided on the driving device (2), and the through hole is used for passing a hoisting rope; A sampling cylinder (3), the sampling cylinder (3) is fixedly mounted on the bottom of the mounting frame (1), a sampling tube is provided on the circumferential surface of the sampling cylinder (3), and the sampling tube is used for sampling wastewater; A partition plate (4), the partition plate (4) being fixedly mounted inside the sampling cylinder (3), the partition plate (4) dividing the interior of the sampling cylinder (3) into an upper cavity and a lower cavity; A cylinder (5), wherein the cylinder (5) is slidably mounted inside the sampling cylinder (3), the cylinder (5) slides along the vertical axis, and an annular groove is provided on the circumferential surface of the cylinder (5); A No. 1 spring (6), the No. 1 spring (6) being arranged between the cylinder (5) and the partition plate (4); An L-shaped rod (7), the L-shaped rod (7) being fixedly mounted on the top of the cylinder (5), and the L-shaped rod (7) being used for manual lifting; A lifting rod (8) is slidably passed through the bottom of the sampling cylinder (3), a second spring (9) is provided between the lifting rod (8) and the partition plate (4), a sealing plate (10) is fixedly passed through the circumferential surface of the lifting rod (8), and a plurality of circular holes are provided on the lower surface of the sampling cylinder (3); Wherein, a locking device having a limiting function and an auxiliary device having a maintenance function are provided on the circumferential surface of the sampling cylinder (3); The locking device comprises a connecting frame (111), a rotating rod (112), a rectangular plate (113), a rotating shaft (114), a blocking plate (115) and a triangular block (116); a handle (117) is fixedly mounted on the circumferential surface of the rotating rod (112); a circular rod (118) is fixedly mounted on a side of the handle (117) close to the connecting frame (111); and the blocking plate (115) can automatically block the L-shaped rod (7); The auxiliary device includes a hollow frame (121), a connecting rod (122), a No. 3 spring (123), a semicircular piece (124) and an annular plate (125), wherein the hollow frame (121) is fixedly mounted on the circumferential surface of the sampling tube (3), the connecting rod (122) slides through the top of the hollow frame (121), the No. 3 spring (123) is arranged between the connecting rod (122) and the hollow frame (121), the semicircular piece (124) is fixedly mounted on the top of the connecting rod (122), the annular plate (125) is fixedly mounted on the circumferential surface of the connecting rod (122), and the curved surface of the semicircular piece (124) contacts the circular rod (118).

2. The multi-directional adjustable sampler according to claim 1, characterized in that: The lifting rod (8) is configured in an "I" shape, the sampling tube contacts the annular groove, and the sealing plate (10) contacts the circular hole.

3. The multi-directional adjustable sampler according to claim 2, characterized in that: The connecting frame (111) is fixedly mounted on the circumferential surface of the sampling tube (3), the rotating rod (112) rotates and penetrates the surface of the connecting frame (111), the rectangular plate (113) is fixedly mounted on the circumferential surface of the rotating rod (112), the rotating shaft (114) rotates and penetrates the surface of the rectangular plate (113), the blocking plate (115) is fixedly mounted on the circumferential surface of the rotating shaft (114), the triangular block (116) is fixedly mounted on a side of the rectangular plate (113) close to the blocking plate (115), a first torsion spring is provided between the rotating rod (112) and the connecting frame (111), a second torsion spring is provided between the rotating shaft (114) and the rectangular plate (113), and the triangular block (116) contacts the top of the blocking plate (115).

4. The multi-directional adjustable sampler according to claim 3, characterized in that: An arc-shaped piece (126) is fixedly mounted on the circumferential surface of the connecting rod (122), and a plurality of cylindrical rods (127) are fixedly mounted on the inner wall of the hollow frame (121).

5. The multi-directional adjustable sampler according to claim 4, characterized in that: The annular plate (125) contacts the circumferential surface of the sampling cylinder (3), the arc-shaped piece (126) itself has elasticity, and a plurality of cylindrical rods (127) are equidistantly distributed along the vertical axis direction.

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